Top Business Schools in India 2013 ← The Times Group TNS had conducted a Survey on B - schools for the year 2013. It was held from November 2012 till February 2013. In - fact this survey was agreed upon to include key stakeholders in the survey for it to be broad - based and reflect the opinions of the different stakeholder segments.TAGS: Business Schools Top List, Indian Top B Schools Ranking, Top Business Schools List, Top List of B Schools in India, Top List of B Schools in Tamilnadu, Top List of Business Schools in India, Top List of Business Schools in Tamilnadu, Top List of Business Schools in TN | Updated in News: